WASHINGTON, Aug. 9 (UPI) -- After more than a week of decline in the UPI/CVoter daily presidential tracking poll, Donald Trump, at least for one day, appears to have stanched the bleeding.
Trump gained 1.2 percentage points and Hillary Clinton dropped by 1.3 percentage points, though she still holds an overall lead, 49.1 percent to 44.3 percent over Trump in data released Tuesday. The poll was conducted from Aug. 1 through Sunday.
The past 10 days have been among Trump's toughest in the campaign. They included several high-profile controversies including Trump's fight with a Muslim family whose son was killed fighting in the U.S. Army in Iraq; Trump's initial decision not to endorse House Speaker Paul Ryan, a popular figure among Republicans; his insistence he had seen a video showing Iran unloading $400 million in cash from the United States, rather than prisoners from Iran leaving an airplane in Switzerland; his ordering a mother with a crying baby to leave a campaign rally.
Before Sunday's data Trump had steadily lost ground and Clinton edged upward in the days since the Democratic National Convention.
The change in trajectory could also be attributable to a stumble by Clinton on Friday, when she admitted she "short-circuited" when describing FBI Director James Comey's characterization of her email testimony as "truthful" when, in fact, he told Republicans on Capitol Hill his investigation found several of her repeated public statements were not backed up by the facts.
The return of Clinton's email scandal to the news immediately predated her slip in the UPI/CVoter tracking poll.
The UPI/CVoter online presidential tracking poll surveys about 200 people per day, leading to a roughly 1,400 voter sample over any seven-day span. In the week from Aug. 1 to Sunday, the poll sampled 1,407 voters, including 960 self-described likely voters. Because individuals online self-select to participate, a margin of error cannot be calculated. The poll has a credibility interval of 3 percentage points.